103231121 has 16 divisors (see below), whose sum is σ = 122027904. Its totient is φ = 85497984.

The previous prime is 103231091. The next prime is 103231151. The reversal of 103231121 is 121132301.

It is an interprime number because it is at equal distance from previous prime (103231091) and next prime (103231151).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103231121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103231096 and 103231105.

It is not an unprimeable number, because it can be changed into a prime (103231151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22781 + ... + 26933.

It is an arithmetic number, because the mean of its divisors is an integer number (7626744).

Almost surely, 2^103231121 is an apocalyptic number.

It is an amenable number.

103231121 is a deficient number, since it is larger than the sum of its proper divisors (18796783).

103231121 is an equidigital number, since it uses as much as digits as its factorization.

103231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 103231121 is about 10160.2716991230. The cubic root of 103231121 is about 469.1051647609.

Adding to 103231121 its reverse (121132301), we get a palindrome (224363422).

The spelling of 103231121 in words is "one hundred three million, two hundred thirty-one thousand, one hundred twenty-one".